2010-12-03 Sebastian Huber <sebastian.huber@embedded-brains.de>

	* startup/bspgetworkarea.c: Removed file.
	* Makefile.am, bsp_specs, start/start.S, startup/bspstart.c,
	libnds/include/nds/jtypes.h, libnds/source/arm9/gurumeditation.c,
	libnds/source/common/interruptDispatcher.S,
	libnds/source/common/interrupts.c, startup/linkcmds: Use linker
	command base file.

11 files changed, 71 insertions, 305 deletions

diff --git a/c/src/lib/libbsp/arm/nds/ChangeLog b/c/src/lib/libbsp/arm/nds/ChangeLog
index 8a149994ec..8e0bd36bdb 100644
--- a/c/src/lib/libbsp/arm/nds/ChangeLog
+++ b/c/src/lib/libbsp/arm/nds/ChangeLog
@@ -1,3 +1,12 @@
+2010-12-03	Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+	* startup/bspgetworkarea.c: Removed file.
+	* Makefile.am, bsp_specs, start/start.S, startup/bspstart.c,
+	libnds/include/nds/jtypes.h, libnds/source/arm9/gurumeditation.c,
+	libnds/source/common/interruptDispatcher.S,
+	libnds/source/common/interrupts.c, startup/linkcmds: Use linker
+	command base file.
+
 2010-05-20	Sebastian Huber <sebastian.huber@embedded-brains.de>
 
 	* make/dswifi/arm9/makefile: Workaround for GCC bug 38644.
diff --git a/c/src/lib/libbsp/arm/nds/Makefile.am b/c/src/lib/libbsp/arm/nds/Makefile.am
index c4448056e2..7e6661c68a 100644
--- a/c/src/lib/libbsp/arm/nds/Makefile.am
+++ b/c/src/lib/libbsp/arm/nds/Makefile.am
@@ -37,7 +37,7 @@ include_nds_HEADERS = touchscreen/touchscreen.h sound/sound.h
 noinst_PROGRAMS += startup.rel
 startup_rel_SOURCES = ../../shared/bsplibc.c ../../shared/bsppost.c \
     startup/bspstart.c ../../shared/bspclean.c startup/bspreset.c \
-    startup/bspgetworkarea.c ../../shared/bsppredriverhook.c \
+    ../../shared/bspgetworkarea.c ../../shared/bsppredriverhook.c \
     ../../shared/bsppretaskinghook.c ../../shared/bootcard.c
 startup_rel_CPPFLAGS = $(AM_CPPFLAGS) -DARM9 -I$(srcdir)/libnds/include
 startup_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
diff --git a/c/src/lib/libbsp/arm/nds/bsp_specs b/c/src/lib/libbsp/arm/nds/bsp_specs
index 5a51d82d2d..082653ad22 100644
--- a/c/src/lib/libbsp/arm/nds/bsp_specs
+++ b/c/src/lib/libbsp/arm/nds/bsp_specs
@@ -7,8 +7,7 @@
 %{!nostdlib: %{qrtems: start.o%s crti.o%s crtbegin.o%s -e _start}}
 
 *link:
-%{!qrtems: %(old_link)} %{qrtems: -dc -dp -Bstatic -N}
+%{!qrtems: %(old_link)} %{qrtems: -dc -dp -N}
 
 *endfile:
 %{!qrtems: *(old_endfiles)} %{qrtems: crtend.o%s crtn.o%s }
-
diff --git a/c/src/lib/libbsp/arm/nds/libnds/include/nds/jtypes.h b/c/src/lib/libbsp/arm/nds/libnds/include/nds/jtypes.h
index ba8388afef..1c64a5abe3 100644
--- a/c/src/lib/libbsp/arm/nds/libnds/include/nds/jtypes.h
+++ b/c/src/lib/libbsp/arm/nds/libnds/include/nds/jtypes.h
@@ -38,9 +38,9 @@
 //---------------------------------------------------------------------------------
 // libgba compatible section macros
 //---------------------------------------------------------------------------------
-#define ITCM_CODE	__attribute__((section(".itcm"), long_call))
+#define ITCM_CODE	__attribute__((section(".bsp_fast_text"), long_call))
 
-#define DTCM_DATA	__attribute__((section(".dtcm")))
+#define DTCM_DATA	__attribute__((section(".bsp_fast_data")))
 #define DTCM_BSS	__attribute__((section(".sbss")))
 #define ALIGN(m)	__attribute__((aligned (m)))
 
diff --git a/c/src/lib/libbsp/arm/nds/libnds/source/arm9/gurumeditation.c b/c/src/lib/libbsp/arm/nds/libnds/source/arm9/gurumeditation.c
index 5420de9d12..b58c5782a3 100644
--- a/c/src/lib/libbsp/arm/nds/libnds/source/arm9/gurumeditation.c
+++ b/c/src/lib/libbsp/arm/nds/libnds/source/arm9/gurumeditation.c
@@ -34,6 +34,8 @@
 #include <stdio.h>
 #include <inttypes.h>
 
+#include <bsp/linker-symbols.h>
+
 //---------------------------------------------------------------------------------
 unsigned long ARMShift(unsigned long value,unsigned char shift) {
 //---------------------------------------------------------------------------------
@@ -205,7 +207,6 @@ static const char *registerNames[] =
 	{	"r0","r1","r2","r3","r4","r5","r6","r7",
 		"r8 ","r9 ","r10","r11","r12","sp ","lr ","pc " };
 
-extern const char __itcm_start[];
 //---------------------------------------------------------------------------------
 static void defaultHandler(void) {
 //---------------------------------------------------------------------------------
@@ -232,7 +233,7 @@ static void defaultHandler(void) {
 		iprintf ("\x1b[10Cdata abort!\n\n");
 		codeAddress = exceptionRegisters[15] - offset;
 		if (	(codeAddress > 0x02000000 && codeAddress < 0x02400000) ||
-				(codeAddress > (u32)__itcm_start && codeAddress < (u32)(__itcm_start + 32768)) )
+				(codeAddress > (u32)bsp_section_fast_text_begin && codeAddress < (u32)(bsp_section_fast_text_begin + 32768)) )
 			exceptionAddress = getExceptionAddress( codeAddress, thumbState);
 		else
 			exceptionAddress = codeAddress;
diff --git a/c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S b/c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S
index 4866d0a05d..45d1bfc1f7 100644
--- a/c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S
+++ b/c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S
@@ -28,7 +28,7 @@
 #endif
 
 #ifdef ARM9
-	.section	.itcm,"ax",%progbits
+	.section	.bsp_fast_text,"ax",%progbits
 #endif
 
 	.extern	irqTable
diff --git a/c/src/lib/libbsp/arm/nds/libnds/source/common/interrupts.c b/c/src/lib/libbsp/arm/nds/libnds/source/common/interrupts.c
index 4f32b3a741..426b976761 100644
--- a/c/src/lib/libbsp/arm/nds/libnds/source/common/interrupts.c
+++ b/c/src/lib/libbsp/arm/nds/libnds/source/common/interrupts.c
@@ -34,7 +34,7 @@ void irqDummy(void) {}
 
 
 #ifdef ARM9
-#define INT_TABLE_SECTION __attribute__((section(".itcm")))
+#define INT_TABLE_SECTION __attribute__((section(".bsp_fast_text")))
 #else
 #define INT_TABLE_SECTION
 #endif
diff --git a/c/src/lib/libbsp/arm/nds/start/start.S b/c/src/lib/libbsp/arm/nds/start/start.S
index 7ecd69ab35..b924449a6c 100644
--- a/c/src/lib/libbsp/arm/nds/start/start.S
+++ b/c/src/lib/libbsp/arm/nds/start/start.S
@@ -1,3 +1,5 @@
+#include <bsp/linker-symbols.h>
+
 @---------------------------------------------------------------------------------
 @ DS processor selection
 @---------------------------------------------------------------------------------
@@ -73,9 +75,9 @@ _start:
 	@ Wait for write buffer to empty
 	mcr	p15, 0, r0, c7, c10, 4
 
-	ldr	r0, =__dtcm_start
+	ldr	r0, =bsp_section_fast_data_begin
 	orr	r0,r0,#0x0a
-	mcr	p15, 0, r0, c9, c1,0		@ DTCM base = __dtcm_start, size = 16 KB
+	mcr	p15, 0, r0, c9, c1,0		@ DTCM base = bsp_section_fast_data_begin, size = 16 KB
 
 	mov r0,#0x20
 	mcr	p15, 0, r0, c9, c1,1		@ ITCM base = 0 , size = 32 MB
@@ -111,14 +113,14 @@ _start:
 	@-------------------------------------------------------------------------
 	@ Region 4 - DTCM
 	@-------------------------------------------------------------------------
-	ldr	r0,=__dtcm_start
+	ldr	r0,=bsp_section_fast_data_begin
 	orr	r0,r0,#(PAGE_16K | 1)
 	mcr	p15, 0, r0, c6, c4, 0
 
 	@-------------------------------------------------------------------------
 	@ Region 5 - ITCM
 	@-------------------------------------------------------------------------
-	ldr	r0,=__itcm_start
+	ldr	r0,=bsp_section_fast_text_begin
 	orr	r0,r0,#(PAGE_32K | 1)
 	mcr	p15, 0, r0, c6, c5, 0
 
@@ -169,24 +171,24 @@ _start:
 
 	mov	r0, #0x12		@ Switch to IRQ Mode
 	msr	cpsr, r0
-	ldr	sp, =__sp_irq		@ Set IRQ stack
+	ldr	sp, =bsp_stack_irq_end	@ Set IRQ stack
 
 	mov	r0, #0x1f		@ Switch to SVC Mode
 	msr	cpsr, r0
-	ldr	sp, =__sp_usr		@ Set user stack
+	ldr	sp, =bsp_stack_svc_end	@ Set user stack
 
-	ldr	r1, =__itcm_lma		@ Copy instruction tightly coupled memory (itcm section) from LMA to VMA (ROM to RAM)
-	ldr	r2, =__itcm_start
-	ldr	r4, =__itcm_end
+	ldr	r1, =bsp_section_fast_text_load_begin	@ Copy instruction tightly coupled memory (itcm section) from LMA to VMA (ROM to RAM)
+	ldr	r2, =bsp_section_fast_text_begin
+	ldr	r4, =bsp_section_fast_text_end
 	bl	CopyMemCheck
 
-	ldr	r1, =__dtcm_lma		@ Copy data tightly coupled memory (dtcm section) from LMA to VMA (ROM to RAM)
-	ldr	r2, =__dtcm_start
-	ldr	r4, =__dtcm_end
+	ldr	r1, =bsp_section_fast_data_load_begin	@ Copy data tightly coupled memory (dtcm section) from LMA to VMA (ROM to RAM)
+	ldr	r2, =bsp_section_fast_data_begin
+	ldr	r4, =bsp_section_fast_data_end
 	bl	CopyMemCheck
 
-	ldr	r0, =__bss_start	@ Clear BSS section
-	ldr	r1, =__bss_end
+	ldr	r0, =bsp_section_bss_begin	@ Clear BSS section
+	ldr	r1, =bsp_section_bss_end
 	sub	r1, r1, r0
 	bl	ClearMem
 
diff --git a/c/src/lib/libbsp/arm/nds/startup/bspgetworkarea.c b/c/src/lib/libbsp/arm/nds/startup/bspgetworkarea.c
deleted file mode 100644
index f337d7874f..0000000000
--- a/c/src/lib/libbsp/arm/nds/startup/bspgetworkarea.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- *  The license and distribution terms for this file may be
- *  found in the file LICENSE in this distribution or at
- *  http://www.rtems.com/license/LICENSE.
- *
- *  $Id$
- */
-
-#include <bsp.h>
-#include <bsp/bootcard.h>
-#include <stdint.h>
-
-/*
- *  These are from the linker script.
- */
-extern void * _end;
-extern void *__ewram_end;
-
-/*
- *  This method returns the base address and size of the area which
- *  is to be allocated between the RTEMS Workspace and the C Program
- *  Heap.
- */
-void bsp_get_work_area(
-  void      **work_area_start,
-  uintptr_t  *work_area_size,
-  void      **heap_start,
-  uintptr_t  *heap_size
-)
-{
-  *work_area_start = &_end;
-  *work_area_size  = (void *)&__ewram_end - (void *)&_end;
-  *heap_start      = BSP_BOOTCARD_HEAP_USES_WORK_AREA;
-  *heap_size       = BSP_BOOTCARD_HEAP_SIZE_DEFAULT;
-}
-
diff --git a/c/src/lib/libbsp/arm/nds/startup/bspstart.c b/c/src/lib/libbsp/arm/nds/startup/bspstart.c
index 5fefe0785a..37aba842b3 100644
--- a/c/src/lib/libbsp/arm/nds/startup/bspstart.c
+++ b/c/src/lib/libbsp/arm/nds/startup/bspstart.c
@@ -13,6 +13,7 @@
 
 #include <bsp.h>
 #include <bsp/bootcard.h>
+#include <bsp/linker-symbols.h>
 #include <nds.h>
 
 extern void BSP_rtems_irq_mngt_init (void);
@@ -50,14 +51,11 @@ void bsp_start (void)
  * reset bss area.
  */
 
-extern uint8_t __bss_start;
-extern uint8_t __bss_end;
-
 void
 bss_reset (void)
 {
 
-  memset (&__bss_start, 0, (uint32_t) & __bss_end - (uint32_t) & __bss_start);
+  memset (bsp_section_bss_begin, 0, (size_t) bsp_section_bss_size);
 }
 
 /*
diff --git a/c/src/lib/libbsp/arm/nds/startup/linkcmds b/c/src/lib/libbsp/arm/nds/startup/linkcmds
index 332a401f86..f9d863c337 100644
--- a/c/src/lib/libbsp/arm/nds/startup/linkcmds
+++ b/c/src/lib/libbsp/arm/nds/startup/linkcmds
@@ -1,246 +1,39 @@
-OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
-OUTPUT_ARCH(arm)
-ENTRY(_start)
-
 MEMORY {
-
-	rom	: ORIGIN = 0x08000000, LENGTH = 32M
-	ewram	: ORIGIN = 0x02000000, LENGTH = 4M - 4k
-	dtcm	: ORIGIN = 0x0b000000, LENGTH = 16K
-	itcm	: ORIGIN = 0x01000000, LENGTH = 32K
+	ROM : ORIGIN = 0x08000000, LENGTH = 32M
+	EWRAM : ORIGIN = 0x02000000, LENGTH = 4M - 4k
+	DTCM : ORIGIN = 0x0b000000, LENGTH = 16k
+	ITCM : ORIGIN = 0x01000000, LENGTH = 16k
+	NIRVANA : ORIGIN = 0, LENGTH = 0
 }
 
-__itcm_start	=	ORIGIN(itcm);
-__ewram_end	=	ORIGIN(ewram) + LENGTH(ewram);
-__eheap_end	=	ORIGIN(ewram) + LENGTH(ewram);
-__dtcm_start	=	ORIGIN(dtcm);
-__dtcm_top	=	ORIGIN(dtcm) + LENGTH(dtcm);
-__irq_flags	=	__dtcm_top - 0x08;
-__irq_vector	=	__dtcm_top - 0x04;
-
-__sp_svc	=	__dtcm_top - 0x100;
-__sp_irq	=	__sp_svc - 0x100;
-__sp_usr	=	__sp_irq - 0x100;
-
-SECTIONS
-{
-	.init	:
-	{
-		__text_start = . ;
-		KEEP (*(.init))
-		. = ALIGN(4);  /* REQUIRED. LD is flaky without it. */
-		} >ewram = 0xff
-
-	.plt : { *(.plt) } >ewram = 0xff
-
-	.text :   /* ALIGN (4): */
-	{
-		*(EXCLUDE_FILE (*.itcm*) .text)
-
-		*(.text.*)
-		*(.stub)
-		/* .gnu.warning sections are handled specially by elf32.em.  */
-		*(.gnu.warning)
-		*(.gnu.linkonce.t*)
-		*(.glue_7)
-		*(.glue_7t)
-
-		    /*
-		     * Special FreeBSD sysctl sections.
-		     */
-		    . = ALIGN (16);
-		    __start_set_sysctl_set = .;
-		    *(set_sysctl_*);
-		    __stop_set_sysctl_set = ABSOLUTE(.);
-		    *(set_domain_*);
-		    *(set_pseudo_*);
-
-		. = ALIGN(4);  /* REQUIRED. LD is flaky without it. */
-	} >ewram = 0xff
-
-	.fini           :
-	{
-		KEEP (*(.fini))
-	} >ewram =0xff
-
-	__text_end = . ;
-
-	.rodata :
-	{
-		*(.rodata)
-		*all.rodata*(*)
-		*(.roda)
-		*(.rodata.*)
-		*(.gnu.linkonce.r*)
-		SORT(CONSTRUCTORS)
-		. = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-	} >ewram = 0xff
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >ewram
-   __exidx_start = .;
-  .ARM.exidx   : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } >ewram
-   __exidx_end = .;
-  /* Ensure the __preinit_array_start label is properly aligned.  We
-     could instead move the label definition inside the section, but
-     the linker would then create the section even if it turns out to
-     be empty, which isn't pretty.  */
-  . = ALIGN(32 / 8);
-  PROVIDE (__preinit_array_start = .);
-  .preinit_array     : { KEEP (*(.preinit_array)) } >ewram = 0xff
-  PROVIDE (__preinit_array_end = .);
-  PROVIDE (__init_array_start = .);
-  .init_array     : { KEEP (*(.init_array)) } >ewram = 0xff
-  PROVIDE (__init_array_end = .);
-  PROVIDE (__fini_array_start = .);
-  .fini_array     : { KEEP (*(.fini_array)) } >ewram = 0xff
-  PROVIDE (__fini_array_end = .);
-
-	.ctors :
-	{
-	/* gcc uses crtbegin.o to find the start of the constructors, so
-		we make sure it is first.  Because this is a wildcard, it
-		doesn't matter if the user does not actually link against
-		crtbegin.o; the linker won't look for a file to match a
-		wildcard.  The wildcard also means that it doesn't matter which
-		directory crtbegin.o is in.  */
-		KEEP (*crtbegin.o(.ctors))
-		KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
-		KEEP (*(SORT(.ctors.*)))
-		KEEP (*(.ctors))
-		. = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-	} >ewram = 0xff
-
-	.dtors :
-	{
-		KEEP (*crtbegin.o(.dtors))
-		KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
-		KEEP (*(SORT(.dtors.*)))
-		KEEP (*(.dtors))
-		. = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-	} >ewram = 0xff
-
-	.eh_frame :
-	{
-		KEEP (*(.eh_frame))
-		. = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-	} >ewram = 0xff
-
-	.gcc_except_table :
-	{
-		*(.gcc_except_table)
-		. = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-	} >ewram = 0xff
-	.jcr            : { KEEP (*(.jcr)) } >ewram = 0
-	.got            : { *(.got.plt) *(.got) *(.rel.got) } >ewram = 0
-
-	.ewram ALIGN(4) :
-	{
-		__ewram_start = ABSOLUTE(.) ;
-		*(.ewram)
-		*ewram.*(.text)
-		. = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-	} >ewram = 0xff
-
-
-	.data ALIGN(4) :
-	{
-		__data_start = ABSOLUTE(.);
-		*(.data)
-		*(.data.*)
-		*(.gnu.linkonce.d*)
-		CONSTRUCTORS
-		. = ALIGN(4);
-		__data_end = ABSOLUTE(.) ;
-	} >ewram = 0xff
-
-
-	__dtcm_lma = . ;
-
-	.dtcm __dtcm_start : AT (__dtcm_lma)
-	{
-		*(.dtcm)
-		*(.dtcm.*)
-		. = ALIGN(4);
-		__dtcm_end = ABSOLUTE(.);
-	} >dtcm = 0xff
-
-
-	__itcm_lma = __dtcm_lma + SIZEOF(.dtcm);
-
-	.itcm __itcm_start : AT (__itcm_lma)
-	{
-		*(.itcm)
-		*itcm.*(.text)
-		. = ALIGN(4);
-		__itcm_end = ABSOLUTE(.);
-	} >itcm = 0xff
-
-	.sbss __dtcm_end :
-	{
-		__sbss_start = ABSOLUTE(.);
-		__sbss_start__ = ABSOLUTE(.);
-		*(.sbss)
-		. = ALIGN(4);    /* REQUIRED. LD is flaky without it. */
-		__sbss_end = ABSOLUTE(.);
-	} >dtcm
-
-
-
-	__bss_lma = __itcm_lma + SIZEOF(.itcm) ;
-	__appended_data = __itcm_lma + SIZEOF(.itcm) ;
-	.bss __bss_lma : AT (__bss_lma)
-	{
-		__bss_start = ABSOLUTE(.);
-		__bss_start__ = ABSOLUTE(.);
-		*(.dynbss)
-		*(.gnu.linkonce.b*)
-		*(.bss*)
-		*(COMMON)
-		. = ALIGN(4);    /* REQUIRED. LD is flaky without it. */
-		__bss_end = ABSOLUTE(.) ;
-		__bss_end__ = __bss_end ;
-	} >ewram
-
-
-	_end = . ;
-	__end__ = . ;
-	PROVIDE (end = _end);
-
-
-
-	/* Stabs debugging sections.  */
-	.stab 0 : { *(.stab) }
-	.stabstr 0 : { *(.stabstr) }
-	.stab.excl 0 : { *(.stab.excl) }
-	.stab.exclstr 0 : { *(.stab.exclstr) }
-	.stab.index 0 : { *(.stab.index) }
-	.stab.indexstr 0 : { *(.stab.indexstr) }
-	.comment 0 : { *(.comment) }
-	/*	DWARF debug sections.
-		Symbols in the DWARF debugging sections are relative to the beginning
-		of the section so we begin them at 0.  */
-	/* DWARF 1 */
-	.debug          0 : { *(.debug) }
-	.line           0 : { *(.line) }
-	/* GNU DWARF 1 extensions */
-	.debug_srcinfo  0 : { *(.debug_srcinfo) }
-	.debug_sfnames  0 : { *(.debug_sfnames) }
-	/* DWARF 1.1 and DWARF 2 */
-	.debug_aranges  0 : { *(.debug_aranges) }
-	.debug_pubnames 0 : { *(.debug_pubnames) }
-	/* DWARF 2 */
-	.debug_info     0 : { *(.debug_info) }
-	.debug_abbrev   0 : { *(.debug_abbrev) }
-	.debug_line     0 : { *(.debug_line) }
-	.debug_frame    0 : { *(.debug_frame) }
-	.debug_str      0 : { *(.debug_str) }
-	.debug_loc      0 : { *(.debug_loc) }
-	.debug_macinfo  0 : { *(.debug_macinfo) }
-	/* SGI/MIPS DWARF 2 extensions */
-	.debug_weaknames 0 : { *(.debug_weaknames) }
-	.debug_funcnames 0 : { *(.debug_funcnames) }
-	.debug_typenames 0 : { *(.debug_typenames) }
-	.debug_varnames  0 : { *(.debug_varnames) }
-	.stack 0x80000 : { _stack = .; *(.stack) }
-	/* These must appear regardless of  .  */
+REGION_ALIAS ("REGION_START", EWRAM);
+REGION_ALIAS ("REGION_VECTOR", DTCM);
+REGION_ALIAS ("REGION_TEXT", EWRAM);
+REGION_ALIAS ("REGION_TEXT_LOAD", EWRAM);
+REGION_ALIAS ("REGION_RODATA", EWRAM);
+REGION_ALIAS ("REGION_RODATA_LOAD", EWRAM);
+REGION_ALIAS ("REGION_DATA", EWRAM);
+REGION_ALIAS ("REGION_DATA_LOAD", EWRAM);
+REGION_ALIAS ("REGION_FAST_TEXT", ITCM);
+REGION_ALIAS ("REGION_FAST_TEXT_LOAD", EWRAM);
+REGION_ALIAS ("REGION_FAST_DATA", DTCM);
+REGION_ALIAS ("REGION_FAST_DATA_LOAD", EWRAM);
+REGION_ALIAS ("REGION_BSS", EWRAM);
+REGION_ALIAS ("REGION_WORK", EWRAM);
+REGION_ALIAS ("REGION_STACK", EWRAM);
+
+__dtcm_top = ORIGIN (DTCM) + LENGTH (DTCM);
+__irq_flags = __dtcm_top - 0x08;
+__irq_vector = __dtcm_top - 0x04;
+
+SECTIONS {
+        .sbss : {
+                __sbss_start = ABSOLUTE(.);
+                __sbss_start__ = ABSOLUTE(.);
+                *(.sbss)
+                . = ALIGN(4);    /* REQUIRED. LD is flaky without it. */
+                __sbss_end = ABSOLUTE(.);
+        } > DTCM
 }
+
+INCLUDE linkcmds.armv4